Which of the following contains ppi - ppi bon | vedclass

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Question

(A, C, D) In $NO_3^-$,$CO_3^{2-}$,and $BO_3^{3-}$,the central atoms ($N$,$C$,$B$) belong to the second period and form $p\pi - p\pi$ bonds with oxygen

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$SO_3^{2-}$

Vedclass · Answer

(A, C, D) In $NO_3^-$,$CO_3^{2-}$,and $BO_3^{3-}$,the central atoms ($N$,$C$,$B$) belong to the second period and form $p\pi - p\pi$ bonds with oxygen atoms ($2p$ orbitals). However,in $SO_3^{2-}$,the sulfur atom belongs to the third period and forms $d\pi - p\pi$ bonds with oxygen atoms. Therefore,all options except $B$ contain $p\pi - p\pi$ bonding. Given the standard nature of this question,it is often asked to identify which species does $NOT$ contain $p\pi - p\pi$ bonding,or the question implies identifying the species with $d\pi - p\pi$ bonding. Assuming the question asks for the species with $d\pi - p\pi$ bonding,the answer is $B$.

Which of the following contains $p\pi - p\pi$ bonding?

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